import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '@/components/Login.vue'
import Home from '@/components/Home.vue';

Vue.use(VueRouter)

const routes = [
  // {
  //   path: '/',
  //   name: 'Home',
  //   component: Home
  // },
  // {
  //   path: '/about',
  //   name: 'About',
  //   // route level code-splitting
  //   // this generates a separate chunk (about.[hash].js) for this route
  //   // which is lazy-loaded when the route is visited.
  //   component: () => import(/* webpackChunkName: "about" */ '../views/About.vue')
  // }
  {
    path: '/',
    // component: Login
    name:"根目录",
    redirect: '/login'
  },
  {
    path: '/login',
    name:"登录页面",
    component: Login
  },
  {
    path:'/home',
    name:"主页面",
    component: Home

  }
]

const router = new VueRouter({
  routes
})

// to将要访问的路径 
//from 从那里来的
router.beforeEach((to,from,next)=>{
  console.log(to)
  if(to.path === '/login' || to === '/') return next();
  const tokenStr = window.sessionStorage.getItem('token')
  // 如果没有取到token 证明没有登录
  if(!tokenStr) return next('/login')
  next()
})


export default router
